Improvement in horseshoes



S. B. HEN RY.

Horseshnes.A

Patented Feb. 23,1a75.

THE GRiNPHC C0.PHOT0.LITH.39&.41 PARK PLACE,N.Y..

NITED STATES PATENT OFFICE'.

SAMUEL B. HENRY, OF FARMFVELL, VIRGINIA.

IMPROVEMENT IN HORSESHOES.

Specication forming part of Letters Patent No. 160,188, dated February23, 1875; application tiled January 21, 1875.

To all whom it may concern:

Beit known that I, SAMUEL B. HENRY, of Farm'well, Loudoun county,Virginia, have invented an Improved Horseshoe, of which the following isa speciication:

My invention relates to that class of horseshoes in which detachablecalks are provided with tongues tting grooves in the shoe 5 and theobjects of my invention are to secure the calks firmly in theirpositions, render them readily detachable, prevent excessive strainsupon the tongues and fastening devices, and to prevent the latter frombeing displaced by the shocks imparted to the shoe.

In the accompanying drawing, Figure l is an inverted plan view of theshoe with its calks, Fig. 2, a-section on the line l 2, Figi; Fig. 3, aninverted plan of the shoe with the calks removed; Fig. 4, a section onthe line 3 4, Fig. l; and Fig. 5, a section on the line 5 6, Fig. l.

The metal shoe A is of any suitable form, and is provided with the usualnail-openings a. a. At the front of the shoe is a slot, c, which is Wideenough at the outer end to admit the dovetailed tongue or projection eof a calk, B, the slot being reduced in width, and undercut at itsopposite end, into which the projection e may be introduced by a lateralmovement of the calk, which is thus prevented from being moved outwardfrom .the shoe. Io prevent any lateral movement of the call; after itsadjustment, as described, a block or key, D, tting the enlarged end ofthe opening c, is introduced into the latter, and is there secured by apin, d, which is passed from the front of the shoe to the rear throughan opening, i, in the shoe, and a corresponding opening in the block.Owing to this transverse position of the fastening-pin, which in someinstances might be used without the block D, it will have no tendency tofall out of its place 5 nor is it so liable to become loosened by theshocks imparted to the shoes as the usual screw-pins iittin g openingsat right angles to the face of the shoe.

The block is thus securely fastened, and the calk, so long as the blockis in position, is as immovably secured in its place as if it were inone piece with the metal of the shoe.

In order that the severe strains to which the call; is subjected may notall be concentrated on the tongue a, which would otherwise be torn fromthe calk, the latter is eX- tended at both sides x m, and at both ends yy', so as to bear directly on the face of the shoe, the projecting end yoverlapping the block D, and tending to retain it in position, so thatthere is no strain on the pin d.

The heel-calks are fastened in a similar manner, except that theopenings c for the reception of the calk tongues and blocks may beformed by lips n n upon the face of the shoe, the blocks D beingretained by transverse pins d, as before.

Vhen the calks are not required, they are removed, and blocks of rubberare substituted therefor, and secured in the same manner as the calks,the said blocks not only effectually preventing the animal fromslipping, but also serving to neutralize the shocks resulting from thecontact of metal shoes with hard pavements.

I do not claim a horseshoe in which a rubber facing is secured to ametal backing by a dovetail and recess, the object of the block ofrubber or other material in my invention being to protect the calkretaining openings when the calks are removed 5 but I claiml. Thecombination of a horseshoe, A, having a recess, c, and transverseopening i, a calk, B, provided with a dovetailed projection adapted tosaid recess, and extending over the bearing on the face of the shoe, ablock, D, fitting the recess c, overlapped by the calk, and retained bya transverse pin, e, all as set forth.

2. A shoe, A, having recesses c c, adapted to receive dovetailedprojections of detachable calks, in combination with blocks of rubberfitted to and secured in said recesses, all as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SAML. B. HENRY. Witnesses:

CHARLES E. FosTER, JAMES MooNEY.

